Sorry for jumping in to another source's thread.
Here is the story shortly, when I received the Balkan tabs on video, in the first glimpse I understood that there was something wrong with them(8 years of seeing Balkan, teaches you stuff). I send all new batches to Balkan's reseller contact for verification anyway so when I sent photos of those suspicious lotes, they responded as in email-photo-. All codes were working and the codes were not checked before, I checked some of them randomly.
This is how I am sure they are fake, as claimed in video.
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